Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control.
At the beginning of your upkeep, add C for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.
NM-Mint - $11.40
Lightly Played - $10.80
Moderately Played - $10.30
Heavily Played - $9.10
Damaged - $7.40
NM-Mint Non English - $11.40
Lightly Played Non English - $10.80
Moderately Played Non English - $10.30
Heavily Played Non English - $9.10
Damaged Non English - $7.40
Foil Prices
NM-Mint Foil - $11.00
Lightly Played Foil - $10.40
Moderately Played Foil - $9.90
Heavily Played Foil - $8.80
Damaged Foil - $7.20
NM-Mint Foil Non English - $11.00
Lightly Played Foil Non English - $10.40
Moderately Played Foil Non English - $9.90
Heavily Played Foil Non English - $8.80
Damaged Foil Non English - $7.20